Class: CarrierWave::Video::Thumbnailer::FFMpegThumbnailer

Inherits:
Object
  • Object
show all
Defined in:
lib/carrierwave/video/thumbnailer/ffmpegthumbnailer.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(in_path, out_path) ⇒ FFMpegThumbnailer

Returns a new instance of FFMpegThumbnailer.



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# File 'lib/carrierwave/video/thumbnailer/ffmpegthumbnailer.rb', line 37

def initialize in_path, out_path
  @input_path  = in_path
  @output_path = out_path
end

Instance Attribute Details

#input_path ⇒ Object (readonly)

Returns the value of attribute input_path.



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# File 'lib/carrierwave/video/thumbnailer/ffmpegthumbnailer.rb', line 35

def input_path
  @input_path
end

#output_path ⇒ Object (readonly)

Returns the value of attribute output_path.



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# File 'lib/carrierwave/video/thumbnailer/ffmpegthumbnailer.rb', line 35

def output_path
  @output_path
end

Class Method Details

.binary ⇒ Object

Tells the thumbnailer binary name



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# File 'lib/carrierwave/video/thumbnailer/ffmpegthumbnailer.rb', line 18

def binary
  @ffmpegthumbnailer.nil? ? 'ffmpegthumbnailer' : @ffmpegthumbnailer
end

.binary=(bin) ⇒ Object

Sets a required thumbnailer binary



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# File 'lib/carrierwave/video/thumbnailer/ffmpegthumbnailer.rb', line 13

def binary=(bin)
  @ffmpegthumbnailer = bin
end

.logger ⇒ Object 



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# File 'lib/carrierwave/video/thumbnailer/ffmpegthumbnailer.rb', line 26

def logger
  return @logger if @logger
  logger = Logger.new(STDOUT)
  logger.level = Logger::INFO
  @logger = logger
end

.logger=(log) ⇒ Object 



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# File 'lib/carrierwave/video/thumbnailer/ffmpegthumbnailer.rb', line 22

def logger= log
  @logger = log
end

Instance Method Details

#run(options) ⇒ Object 



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# File 'lib/carrierwave/video/thumbnailer/ffmpegthumbnailer.rb', line 42

def run options
  logger = options.logger
  cmd = %Q{#{CarrierWave::Video::Thumbnailer::FFMpegThumbnailer.binary} -i #{input_path} -o #{output_path} #{options.to_cli}}.rstrip

    logger.info("Running....#{cmd}") if logger
    outputs = []
    exit_code = nil

    Open3.popen3(cmd) do |stdin, stdout, stderr, wait_thr|
      stderr.each("r") do |line|
        outputs << line
      end
      exit_code = wait_thr.value
    end

    handle_exit_code(exit_code, outputs, logger)
end